周迅;刘林;叶永红;

• 1:中国地质大学(武汉)
• 2:中国地质调查局南京地质调查中心

摘要(Abstract)：

以粒径0.45μm为悬浮态和溶解态区分界限,采用高分辨电感耦合等离子体质谱(HR-ICP-MS)法,测定并分析了南通市沿江地区潜水的稀土元素质量浓度、形态、分布特征和分配模式,为识别地下水污染来源提供依据。结果表明:潜水中稀土元素质量浓度很低,溶解态稀土元素的质量浓度均值和空间分布均衡性高于悬浮态。潜水中溶解态轻稀土元素质量浓度、分布均匀性高于溶解态重稀土元素。潜水溶解态稀土元素质量浓度在Eh<50mV时,与Eh值正相关;在Eh>50mV时呈负相关。潜水溶解态稀土元素呈现Ce负异常,Eu正异常,北美页岩标准化分配模式则表现出轻稀土元素富集现象。溶解态轻稀土元素质量浓度与pH值呈负相关,溶解态重稀土质量浓度与pH值呈正相关。潜水溶解态轻稀土元素富集程度与水动力条件呈现显著的负相关关系,并在空间分布上呈现水平分带,这为从区域水动力条件角度认识地下水中物质的富集效应提供了新的途径。

关键词(KeyWords)： 潜水;稀土元素;分配模式;南通;沿江地区

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金项目(41302209)

作者(Author): 周迅;刘林;叶永红;

Email:

参考文献(References)：

• [1]Hanson G N.Rareearth elements in petrogenetic studies of igneous systems[J].Annual Review of Earth&Planetary Sciences,2003,8(1):371-406.
• [2]Taylor S R,Mclennan S M.The continental crust:Its composition and evolution[M].Oxford:Blackwell Scientific Publications,1985.
• [3]Braun J J,Pagel M,Muller J P,et al.Cerium anomalies in lateritic profiles[J].Geochimica et Cosmochimica Acta,1990,54(3):781-795.
• [4]Bau M.Rare-earth element mobility during hydrothermal and metamorphic fluid-rock interaction and the significance of the oxidation state of europium[J].Chemical Geology,1991,93(3/4):219-230.
• [5]Bottomley D J,Veizer J.The nature of groundwater flow in fractured rock:Evidence from the isotopic and chemical evolution of recrystallized fracture calcites from the Canadian Precambrian Shield[J].Geochimica et Cosmochimica Acta,1992,56(1):369-388.
• [6]Leybourne M I,Goodfellow W D,Boyle D R,et al.Rapid development of negative Ce anomalies in surface waters and contrasting REE patterns in groundwaters associated with Zn-Pb massive sulphide deposits[J].Applied Geochemistry,2000,15(6):695-723.
• [7]刘敬党,梁帅,张艳飞,等.加拿大纽芬兰省稀有稀土矿化特征与勘查进展[J].地质科技情报,2015,34(1):167-172.
• [8]Shomar B.Geochemistry of soil and groundwater in arid regions:Qatar as a case study[J].Groundwater for Sustainable Development,2015,1(1/2):33-40.
• [9]谢尚克,杜佰伟,王剑.伦坡拉盆地丁青湖组油页岩稀土元素特征及其地质意义[J].地质科技情报,2015,34(2):57-62.
• [10]王立军,王玉琦,章申,等.中国不同类型土壤中稀土元素的形态分布特征[J].中国稀土学报,1997,15(1):64-70.
• [11]凌斯祥,巫锡勇,任勇,等.大巴山早寒武世黑色岩层稀土元素特征及沉积环境分析[J].地质科技情报,2015,34(5):31-37.
• [12]Liu H,Guo H,Xing L,et al.Geochemical behaviors of rare earth elements in groundwater along a flow path in the North China Plain[J].Journal of Asian Earth Sciences,2016,117:33-51.
• [13]Anja G,Martin L,Dirk M,et al.Rare earth elements as a tool for studying the formation of cemented layers in an area affected by acid mine drainage[J].Applied Geochemistry,2015,54(3):100-110.
• [14]Olias M,Ceron J C,Fernandez I,et al.Distribution of rare elements in an alluvial aquifer affected by acid mine drainage:The Guadiamar aquifer(SW Spain)[J].Environmental Pollution,2005,135(1):53-64.
• [15]哈承佑,赵继昌.南通地区地下水系统[J].水文地质工程地质,1990,17(4):8-11.
• [16]周慧芳,谭红兵,张文杰.南通地区地下水循环与水化学时空变化规律研究[J].人民长江,2014,45(23):103-108.
• [17]程青,蔡述伟,李华玲,等.高分辨电感耦合等离子体质谱法测定地下水中稀土元素[J].环境监测管理与技术,2015,27(4):48-50.
• [18]王立军,章申,张朝生,等.长江中下游稀土元素的水环境地球化学特征[J].环境科学学报,1995,15(1):57-65.
• [19]韩贵琳,刘丛强.喀斯特河流溶解态稀土元素组成变化及其控制因素[J].中国岩溶,2004,23(3):177-186.
• [20]孟秀丽,季宏兵.赣南小流域水体中溶解态稀土元素地球化学特征[J].中国稀土学报,2007,25(5):625-631.
• [21]R9nnback P,str9m M,Gustafsson J P.Comparison of the behaviour of rare earth elements in surface waters,overburden groundwaters and bedrock groundwaters in two granitoidic settings,Eastern Sweden[J].Applied Geochemistry,2008,23(7):1862-1880.
• [22]Haskin L A,Haskin M A,Frey F A,et al.Relative and absolute terrestrial abundances of the rare earths[J].Origin&Distribution of the Elements,1968,34(3):889-912.
• [23]Johannesson K H,Stetzenbach K J,Hodge V F.Speciation of the rare earth element neodymium in groundwaters of the Nevada Test Site and Yucca Mountain and implications for actinide solubility[J].Applied Geochemistry,1995,10(5):565-572.
• [24]Johannesson K H,Cortés A,Leal J A R,et al.Rare earth elements in groundwater flow systems[M].Metherlands:Springer,2005.
• [25]谢先军,王焰新,李俊霞,等.大同盆地高砷地下水稀土元素特征及其指示意义[J].地球科学:中国地质大学学报,2012,37(2):381-390.
• [26]郭华明,张波,李媛,等.内蒙古河套平原高砷地下水中稀土元素含量及分异特征[J].地学前缘,2010,17(6):59-66.
• [27]Chevis D A,Johannesson K H,Burdige D J,et al.Submarine groundwater discharge of rare earth elements to a tidally-mixed estuary in Southern Rhode Island[J].Chemical Geology,2015,397(1):128-142.
• [28]Johannesson K H,Zhou X,Guo C,et al.Origin of rare earth element signatures in groundwaters of circumneutral pH from southern Nevada and eastern California,USA[J].Chemical Geology,2000,164(3):239-257.
• [29]朱兆洲,刘丛强,王中良,等.太湖水体中稀土元素地球化学特征[J].中国稀土学报,2011,29(2):233-238.
• [30]薛禹群,吴吉春,谢春红,等.莱州湾沿岸海水入侵与咸水入侵研究[J].科学通报,1997,42(22):2360-2368.